	var back = document.getElementById("back");
			var ul = document.getElementsByClassName("ul")[0];
			var li = ul.getElementsByTagName("li");
			var jishu = document.getElementById("jishu");
			var submit1 = document.getElementById("submit1");
			back.addEventListener("touchstart",function(){
				window.history.go(-1);
			})
			ul.addEventListener("touchstart",function(event){
				for(var i=0;i<li.length;i++){
					li[i].style.border = "1px solid #7e7e7e";
					li[i].style.color = "#7e7e7e";
					if(event.target.nodeName.toLowerCase() == "li"){
						event.target.style.border = "1px solid #f9a580";
						event.target.style.color = "#f9a580";
					}
				}
			})
			jishu.addEventListener("touchstart",function(){	
				if(event.target.nodeName.toLowerCase() == "li"){
					event.target.classList.toggle("zan");
				}
			})
			submit1.addEventListener("touchstart",function(event){
				this.style.background = "#e8201e";
			})
			submit1.addEventListener("touchend",function(event){
				this.style.background = "#f23a38";
			})